CN102348916B - Pressure-operated control valve - Google Patents
Pressure-operated control valve Download PDFInfo
- Publication number
- CN102348916B CN102348916B CN2010800120107A CN201080012010A CN102348916B CN 102348916 B CN102348916 B CN 102348916B CN 2010800120107 A CN2010800120107 A CN 2010800120107A CN 201080012010 A CN201080012010 A CN 201080012010A CN 102348916 B CN102348916 B CN 102348916B
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- CN
- China
- Prior art keywords
- diaphragm
- valve
- pressure
- mentioned
- operated control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 241000237970 Conus <genus> Species 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 abstract description 12
- 239000012530 fluid Substances 0.000 abstract description 6
- 239000003795 chemical substances by application Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000005057 refrigeration Methods 0.000 description 5
- 230000003321 amplification Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0406—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded in the form of balls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0493—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with a spring other than a helicoidal spring
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7781—With separate connected fluid reactor surface
- Y10T137/7835—Valve seating in direction of flow
- Y10T137/7836—Flexible diaphragm or bellows reactor
Abstract
A pressure-operated control valve having a configuration in which a valve element is pressed against a valve seat by the spring force of a diaphragm and the valve is opened when the diaphragm starts to deform due to a set pressure of fluid, wherein the liquid is prevented from leaking in the initial stage of deformation of the diaphragm. A ball valve (2) and a valve rod (3) are arranged within a valve chamber (13). A valve port (14) is opened and closed by the ball valve (2). A coiled spring (5) is disposed within a spring chamber (16), and the valve rod (3) is pressed against a diaphragm (7)through a spring receiver (31) of the valve rod (3). The diaphragm (7) comprises a cone section (71) and a flat section (72) (or a recessed section) located inside the cone section. The diameter of adiaphragm-side end surface (3A) of the valve rod (3) is set to be greater than the diameter of the flat section (72) of the diaphragm (7). The configuration causes a boundary portion (74) which is the boundary between the cone section (71) and the flat section (72) to make contact with the diaphragm-side end surface (3A) in the initial stage of deformation of the diaphragm (7).
Description
Technical field
The present invention relates to have the pressure-operated control valve of following structure: utilize the elastic force of diaphragm to push away valve body to valve seat, diaphragm is because the setting pressure of fluid begins distortion, thereby opens valve.
Background technique
In the past, as the pressure-operated valve, disclosed pressure-operated valve in TOHKEMY 2006-77823 communique (patent documentation 1), TOHKEMY 2002-71037 communique (patent documentation 2) was for example arranged.
The pressure-operated valve of patent documentation 1 forms inner space with connecting tube and outlet with the cover of connecting tube with in the flap member that central part has an open-work by having entrance, utilize diaphragm that this inner space is isolated into the first Room and the second Room, and make this diaphragm be arranged on the outlet relative with the valve seat on connecting tube.And, be specified value when following at the first indoor pressure, make diaphragm and valve seat butt, thus cut-off valve, if the first indoor pressure surpasses specified value, diaphragm is lifted off a seat, thereby opens valve.
The pressure-operated valve of patent documentation 2 is the safety valves for high pressure control valve etc., counter-rotary-ing plate assembly body (diaphragm) is riveted together with the catch push part be fixed on the valve chest that inlet attack and outlet connection are installed, and make this counter-rotary-ing plate assembly body relative with the relief valve port of seat portion.And, be occasion below specified value at the pressure of valve chamber, utilize counter-rotary-ing plate assembly body blocking safety valve mouth, being occasion more than specified value, make the counter-rotating of counter-rotary-ing plate assembly body, thereby open the safety-valve mouth.
This pressure-operated control valve is to be used in conversion such as the disclosed safety valve of TOHKEMY 2003-336914 communique (patent documentation 3), the disclosed hydraulic seal of TOHKEMY 2003-139429 communique (patent documentation 4) to prevent pipeline etc., the structure of moving when pressure surpasses the pressure of setting.Thus, situation about using take safety as purpose generally is more, when the pressure of setting is following, even small valve leaks, due to directly related with the decline of the COP value that circulates, therefore requires to sew little.
The prior art document
Patent documentation
Patent documentation 1: TOHKEMY 2006-77823 communique
Patent documentation 2: TOHKEMY 2002-71037 communique
Patent documentation 3: TOHKEMY 2003-336914 communique
Patent documentation 4: TOHKEMY 2003-139429 communique
Summary of the invention
Invent problem to be solved
Be used for patent documentation 1 pressure-operated control valve diaphragm due to shape and material inhomogeneous, therefore produce sometimes inhomogeneous a little distortion when being out of shape due to pressure.In addition, be used for the counter-rotary-ing plate assembly body of pressure-operated control valve of patent documentation 2 except above-mentioned nonuniformity, have the gap between the counter-rotary-ing plate that forms of rocking of bias due to each counter-rotary-ing plate, shape.Therefore, in pressure rise, begin respectively distortion for one or more counter-rotary-ing plate that blocks this gap.
The nonuniformity of the distortion of this diaphragm and counter-rotary-ing plate assembly body becomes the main cause of sewing.For example, as shown in Figure 8, if diaphragm a is out of shape a little, and its distortion is inhomogeneous, even the A part contacts with valve seat b, also can partly produce the gap at B, produces leak of liquid from valve port c.This is to be caused by the characteristic that diaphragm a and counter-rotary-ing plate assembly body begin to be out of shape a little before reaching the setting pressure of regulation.
There is nonuniformity even problem of the present invention is to provide in the distortion of diaphragm, also can prevents the pressure-operated control valve of leak of liquid.
Be used for solving the method for problem
The pressure-operated control valve of scheme one possesses: stacked have the conus portion of circular cone shape and have the diaphragm that the sheet metal of par or recess forms in the inboard of this conus portion; Be formed at the valve port between first side mouth and second side mouth; Open and close the valve body of above-mentioned valve port; Be disposed between above-mentioned diaphragm and above-mentioned valve section, and the counter-force that is used for utilizing this diaphragm is shifted above-mentioned valve section onto the valve rod of above-mentioned valve port; And the helical spring of above-mentioned valve rod being shifted onto above-mentioned diaphragm, this pressure-operated control valve is characterised in that, the boundary part that constitutes the above-mentioned conus portion of above-mentioned diaphragm and above-mentioned par or above-mentioned recess contacts with this diaphragm side end face in the inboard of the diaphragm side end face of above-mentioned valve rod.
The invention effect
According to the pressure-operated control valve of scheme one, diaphragm has conus portion and par or recess, and the boundary part of the boundary part of this conus portion and par or conus portion and recess is larger than other partially rigids.Therefore, even diaphragm is because the rising of hydrodynamic pressure begins initial deformation, because at least a portion of the above-mentioned boundary part of this diaphragm can be out of shape between deformation phases in the early stage, therefore, for the diaphragm side end face of valve rod becomes at least a portion of this boundary part the state that contacts with diaphragm, the movement of restriction valve rod and valve section, thus valve port is maintained the state of closing.Therefore, can prevent leak of liquid when the diaphragm initial deformation.
Description of drawings
Fig. 1 is the longitudinal section of the pressure-operated control valve of embodiments of the present invention.
Fig. 2 means the amplification view of detailed construction of diaphragm of the pressure-operated control valve of mode of execution.
Fig. 3 is the figure of an example of the effect of the diaphragm of pressure-operated control valve of explanation mode of execution and valve rod.
Fig. 4 is the figure of another example of the effect of the diaphragm of pressure-operated control valve of explanation mode of execution and valve rod.
Fig. 5 illustrates the figure of the effect of mode of execution by the structure of the pressure-operated control valve that compares mode of execution and generation leak of liquid.
Fig. 6 is the figure by the valve opening characteristic of the structure of the pressure-operated control valve that relatively represents mode of execution and generation leak of liquid.
Fig. 7 means another embodiment's the figure of diaphragm of the pressure-operated control valve of mode of execution.
Fig. 8 is the figure of the problem points of the existing pressure-operated control valve of explanation.
Embodiment
The mode of execution of pressure-operated control valve of the present invention then, is described with reference to figure.Fig. 1 is the longitudinal section of the pressure-operated control valve 10 of mode of execution, and Fig. 2 means the amplification view of detailed construction of the diaphragm 7 of pressure-operated control valve 10 of the present invention.
The pressure-operated control valve 10 of present embodiment has valve chest 1.Be formed with the first side mouth 11 of fluid inflow, second side mouth 12, valve chamber cylindraceous 13, valve port 14, passage 15, spring housing 16 and the passage 17 that fluid flows out on valve chest 1.Inlet attack 11a is installed on first side mouth 11, outlet connection 12a is installed on second side mouth 12.Inlet attack 11a is communicated with valve chamber 13 by passage 15, and outlet connection 12a is communicated with valve chamber 13 by valve port 14.In addition, passage 15 is communicated with spring housing 16 by passage 17.
Around openings in the spring housing 16 of valve chest 1 is assembled with the lid 6 of ring-type integratedly by soldering.In addition, with respect to lid 6, diaphragm 7 described later and catch 8 are installed.Lid 6, diaphragm 7 and catch 8 are soldered at the peripheral part shown in the dashdotted ellipse of the list of Fig. 1.And reinforcement feature 9 covers diaphragm 7 and catch 8, and tegmentum 6 coverings, by riveting the end of this reinforcement feature 9, with lid 6 assembling integratedly.Thus, be formed with to the pressure chamber 61 that diaphragm 7 is exerted pressure in the inboard of lid 6.
According to above structure, carbonic acid gas (CO for example
2) etc. the refrigeration agent in overcritical territory flow into from inlet attack 11a, this refrigeration agent is exerted pressure to diaphragm 7 by passage 15, passage 17, spring housing 16 and pressure chamber 61.Be occasion below predefined pressure at this pressure, diaphragm 7 can not be out of shape, and utilizes the counter-force valve push rod 3 of diaphragm 7, and ball valve 2 is pushed to valve port 14, becomes the valve state that closes of Fig. 1.In addition, the refrigeration agent that flows into from inlet attack 11a flows into valve chamber 13 from passage 15, under the state of Fig. 1, and ball valve 2 close port 14, refrigeration agent can not flow into outlet connection 12a.On the other hand, if the pressure of refrigeration agent uprises, the pressure of pressure chamber 16 is for more than the pressure of setting, and diaphragm 7 is out of shape, and valve rod 3 and ball valve 2 utilize the elastic force of helical spring 5 follow the distortion of diaphragm 7 and move.Thus, valve port 14 is opened, and becomes out the valve state.
As shown in Figure 2, diaphragm 7 is structures of many metal-made leaf spring 7a of stacked disk shape, have circular cone shape and become a little the face of spherical shape conus portion 71, be positioned at conus portion 71 inboard central authorities par 72 and be positioned at the lip part 73 of the periphery of conus portion 71.And, the boundary part 74 of conus portion 71 and par 72 be with respect to valve rod 3 to oblique protrusion, this boundary part 74 is larger than other partially rigids.In addition, valve rod 3 is cylindric, has circular diaphragm side end face 3A in diaphragm 7 sides.The diameter D of this diaphragm side end face 3A is set as larger than the diameter d of the par 72 of diaphragm 7.
At this, for example as shown in Figure 3, if due to the rising of hydrodynamic pressure, the pressure of fluid is near predefined pressure, and diaphragm 7 carries out initial deformation.But, indeformable when at least a portion of the border components 74 of diaphragm 7 is out of shape in the early stage at this moment, slower than other boundary part distortion.Therefore, become the state that the diaphragm side end face 3A of valve rod 3 contacts with diaphragm 7 at this boundary part 74, thus the movement of restriction valve rod 3 (and ball valve 2).Thus, even the pressure of fluid approaches the pressure of setting, also valve port 14 can be maintained closed condition.That is the leak of liquid in the time of, can preventing that diaphragm 7 is out of shape in the early stage.
In addition, in the large occasion in the gap of leaf spring 7a, the 7a of diaphragm 7 etc., for example as shown in Figure 4, also there is the initial deformation due to diaphragm 7, the occasion of par 72 depressions etc.Distortion when even this occasion, the boundary part 74 of diaphragm 7 can be out of shape in the early stage yet.That is, because the position (position of at least a portion) of boundary part 74 does not change, therefore become the state that the diaphragm side end face 3A of valve rod 3 contacts with diaphragm 7 at this boundary part 74.Thus, valve port 14 can be maintained closed condition, thus the leak of liquid in the time of can preventing that diaphragm 7 is out of shape in the early stage.
In addition, valve rod 3 as shown in Fig. 5 (A) ' like that, if the diameter D ' of diaphragm side end face 3A ' is less than the diameter d of the par 72 of diaphragm 7, as shown in Fig. 5 (B), even boundary part 74 can not move because of the initial deformation of diaphragm 7, the distortion of valve rod 3 ' also can follow par 72 is moved upward.In addition, at the diaphragm 7 as shown in Fig. 5 (C) ' there is no like that the occasion of par, as shown in Fig. 5 (D), valve rod 3 ' due to diaphragm 7 ' initial deformation be moved upward.Therefore, diaphragm 7,7 ' initial deformation the time produce leak of liquid.But, this situation can not appear in the present invention.
Fig. 6 means the pressure-operated control valve 10 of mode of execution and for example figure of the valve opening characteristic of pressure-operated control valve shown in Figure 5, in the situation that produce as shown in Figure 5 leak of liquid, as shown in Fig. 6 (A), begin to open pressure (initial deformation initiation pressure) to the characteristic of the aperture of the expectation shape that becomes to couch from valve.That is, before the aperture that obtains expecting, valve is opened in wider scope, causes leak of liquid large.Relative thus, in the pressure-operated control valve 10 of mode of execution, owing to also can keeping the valve state that closes that utilizes ball valve 2 when the initial deformation of diaphragm, therefore can make to begin to open pressure (initial deformation end pressure) from valve and become standing shape to the characteristic of the aperture of expecting, leak of liquid is few.
Fig. 7 means another embodiment's of diaphragm 7 figure, the mark symbol identical with Fig. 2 on the key element identical with the embodiment of Fig. 2.In the above-described embodiment, diaphragm 7 has par 72, but as the present embodiment, replaces par 72, can form from the recess 75 of valve rod 3 side depressions in the inboard of conus portion 71.In this occasion, the boundary part 76 that becomes the border of conus portion 71 and recess 75 also plays the effect identical with the boundary part 74 of above-mentioned mode of execution.
In addition, in mode of execution, the situation that stacked many metal-made leaf springs are consisted of diaphragm 7 describes, but also can be made of a leaf spring.
Symbol description
The 1-valve chest, 2-ball valve, 3-valve rod, 3A-diaphragm side end face, 5-helical spring, 7-diaphragm, 10-pressure-operated control valve, 11-first side mouth, 12-second side mouth, 13-valve chamber, 14-valve port, 71-conus portion, 72-par, 74-boundary part.
Claims (1)
1. pressure-operated control valve possesses:
Stacked have the conus portion of circular cone shape and have the diaphragm that the sheet metal of par or recess forms in the inboard of this conus portion;
Be formed at the valve port between first side mouth and second side mouth;
Open and close the valve section of above-mentioned valve port;
Be disposed between above-mentioned diaphragm and above-mentioned valve section, and the counter-force that is used for utilizing this diaphragm is shifted above-mentioned valve section onto the valve rod of above-mentioned valve port; And
Above-mentioned valve rod is shifted onto the helical spring of above-mentioned diaphragm,
This pressure-operated control valve is characterised in that,
The boundary part that constitutes the above-mentioned conus portion of above-mentioned diaphragm and above-mentioned par or above-mentioned recess contacts with this diaphragm side end face in the inboard of the diaphragm side end face of above-mentioned valve rod.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009-002123 | 2009-04-06 | ||
| JP2009002123U JP3151299U (en) | 2009-04-06 | 2009-04-06 | Pressure operated control valve |
| PCT/JP2010/055412 WO2010116901A1 (en) | 2009-04-06 | 2010-03-26 | Pressure-operated control valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102348916A CN102348916A (en) | 2012-02-08 |
| CN102348916B true CN102348916B (en) | 2013-06-12 |
Family
ID=42936187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010800120107A Active CN102348916B (en) | 2009-04-06 | 2010-03-26 | Pressure-operated control valve |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US8678349B2 (en) |
| EP (1) | EP2418406B1 (en) |
| JP (1) | JP3151299U (en) |
| CN (1) | CN102348916B (en) |
| WO (1) | WO2010116901A1 (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9341281B2 (en) | 2007-02-12 | 2016-05-17 | Colt Irrigation Llc | Fluid activated flow control apparatus |
| US8397745B2 (en) | 2007-02-12 | 2013-03-19 | Colt Irrigation, LLC | Fluid activated flow control apparatus |
| JP6049184B2 (en) * | 2012-12-04 | 2016-12-21 | Ｋｙｂ株式会社 | Control valve |
| JP5970426B2 (en) * | 2013-06-28 | 2016-08-17 | 株式会社鷺宮製作所 | Pressure operating valve and setting method of set pressure in pressure operating valve |
| JP5913216B2 (en) * | 2013-07-16 | 2016-04-27 | 株式会社鷺宮製作所 | Pressure operated valve |
| WO2015080932A1 (en) * | 2013-11-27 | 2015-06-04 | Eaton Corporation | Valve system for bi-directional flow control |
| US10088849B2 (en) | 2014-01-23 | 2018-10-02 | Colt Irrigation, LLC | Fluid activated flow control apparatus |
| US9599286B2 (en) | 2014-01-23 | 2017-03-21 | Colt Irrigation, LLC | Fluid activated flow control apparatus |
| US10571937B1 (en) | 2014-01-23 | 2020-02-25 | Colt Irrigation, LLC | Valve control apparatus |
| CN104048077B (en) * | 2014-06-30 | 2016-12-07 | 机械科学研究总院青岛分院 | Oil control supertension check valve |
| CN104075001A (en) * | 2014-06-30 | 2014-10-01 | 无锡市威海达机械制造有限公司 | Adjustable ultrahigh pressure check valve |
| CN104075002A (en) * | 2014-06-30 | 2014-10-01 | 无锡市威海达机械制造有限公司 | Adjustable ultrahigh pressure check valve |
| CN104989867A (en) * | 2015-07-20 | 2015-10-21 | 武汉海纳川科技有限公司 | Gas-liquid control valve and oxygen generator with same |
| CN105090150B (en) * | 2015-08-05 | 2017-03-22 | 华中科技大学 | Ultrahigh-pressure hydraulic-control integral reversing valve |
| JP6151389B2 (en) * | 2016-02-05 | 2017-06-21 | 株式会社鷺宮製作所 | Pressure operated valve |
| CN105805395A (en) * | 2016-05-31 | 2016-07-27 | 宁波福特恩净水设备有限公司 | Pressure control valve capable of being rapidly opened and closed |
| KR102157826B1 (en) * | 2019-03-20 | 2020-09-18 | 엠케이프리시젼 주식회사 | A plunger device of the mass flow meter |
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| US4138089A (en) * | 1977-08-09 | 1979-02-06 | The United States Of America As Represented By The Secretary Of The Department Of Health, Education And Welfare | Slide valve |
| US4243070A (en) * | 1978-08-16 | 1981-01-06 | Jackson Samuel G | Variable back pressure valve |
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| US2748797A (en) * | 1951-11-08 | 1956-06-05 | Specialties Dev Corp | Pneumatic time-delay fuse |
| US3542289A (en) * | 1968-09-24 | 1970-11-24 | Ford Motor Co | Snap action thermally responsive valve |
| US4144998A (en) * | 1974-12-09 | 1979-03-20 | Texas Instruments Incorporated | Double throw thermal valve |
| US4247041A (en) * | 1977-12-07 | 1981-01-27 | Aisin Seiki Kabushiki Kaisha | Thermally responsive valve device |
| US4684106A (en) * | 1983-04-05 | 1987-08-04 | Nupro Company | Valve |
| JPS59219676A (en) * | 1983-05-26 | 1984-12-11 | 株式会社鷺宮製作所 | Refrigerator with pressure type opening and closing valve |
| JPS6016268A (en) * | 1983-07-07 | 1985-01-28 | 三洋電機株式会社 | Cooling device |
| JPH06229481A (en) * | 1993-02-02 | 1994-08-16 | Saginomiya Seisakusho Inc | Control valve |
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2009
- 2009-04-06 JP JP2009002123U patent/JP3151299U/en not_active Expired - Fee Related
-
2010
- 2010-03-26 WO PCT/JP2010/055412 patent/WO2010116901A1/en active Application Filing
- 2010-03-26 CN CN2010800120107A patent/CN102348916B/en active Active
- 2010-03-26 EP EP10761601.3A patent/EP2418406B1/en active Active
- 2010-03-26 US US13/147,641 patent/US8678349B2/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4138089A (en) * | 1977-08-09 | 1979-02-06 | The United States Of America As Represented By The Secretary Of The Department Of Health, Education And Welfare | Slide valve |
| US4243070A (en) * | 1978-08-16 | 1981-01-06 | Jackson Samuel G | Variable back pressure valve |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2005-30553A 2005.02.03 |
| JP特开平11-280578A 1999.10.12 |
Also Published As
| Publication number | Publication date |
|---|---|
| US8678349B2 (en) | 2014-03-25 |
| CN102348916A (en) | 2012-02-08 |
| US20110284790A1 (en) | 2011-11-24 |
| JP3151299U (en) | 2009-06-18 |
| EP2418406B1 (en) | 2018-05-02 |
| WO2010116901A1 (en) | 2010-10-14 |
| EP2418406A4 (en) | 2017-01-04 |
| EP2418406A1 (en) | 2012-02-15 |
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